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Cheap flights from Portland, Maine to Louisville from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Louisville departing on 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland, Maine to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:51 pm - 10:30 pm
PWM
-
SDF
5h 39m
1 stop
United Airlines Logo
6:30 am - 1:25 pm
SDF
-
PWM
6h 55m
1 stop
$330United Airlines
Tue, May 26 - Wed, May 27
Southwest Logo
3:55 pm - 10:55 pm
PWM
-
SDF
7h 00m
1 stop
Southwest Logo
3:45 pm - 10:35 pm
SDF
-
PWM
6h 50m
1 stop
$335Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
5:40 am - 12:55 pm
PWM
-
SDF
7h 15m
1 stop
Southwest Logo
3:45 pm - 10:35 pm
SDF
-
PWM
6h 50m
1 stop
$336Southwest
Sat, May 9 - Tue, May 12
Southwest Logo
1:00 pm - 9:05 pm
PWM
-
SDF
8h 05m
2 stops
Southwest Logo
3:45 pm - 10:35 pm
SDF
-
PWM
6h 50m
1 stop
$340Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
5:40 am - 3:50 pm
PWM
-
SDF
10h 10m
2 stops
Southwest Logo
3:45 pm - 10:35 pm
SDF
-
PWM
6h 50m
1 stop
$341Southwest
Sat, May 9 - Tue, May 12
Breeze Airways Logo
6:38 pm - 10:32 am
PWM
-
SDF
15h 54m
1 stop
Breeze Airways Logo
8:28 pm - 8:51 pm
SDF
-
PWM
24h 23m
2 stops
$350Breeze Airways
Sat, Aug 22 - Fri, Aug 28
Southwest Logo
1:00 pm - 10:15 pm
PWM
-
SDF
9h 15m
2 stops
Southwest Logo
3:30 pm - 10:35 pm
SDF
-
PWM
7h 05m
2 stops
$365Southwest
Tue, May 26 - Wed, May 27
Southwest Logo
3:55 pm - 10:55 pm
PWM
-
SDF
7h 00m
1 stop
Southwest Logo
4:45 pm - 11:25 pm
SDF
-
PWM
6h 40m
1 stop
$371Southwest
Tue, May 26 - Fri, May 29
United Airlines Logo
3:22 pm - 11:12 pm
PWM
-
SDF
7h 50m
1 stop
United Airlines Logo
2:55 pm - 9:19 pm
SDF
-
PWM
6h 24m
1 stop
$372United Airlines
Wed, Apr 29 - Sat, May 2
Southwest Logo
3:55 pm - 10:55 pm
PWM
-
SDF
7h 00m
1 stop
Southwest Logo
5:25 pm - 11:25 pm
SDF
-
PWM
6h 00m
2 stops
$376Southwest
Tue, May 26 - Fri, May 29

Southwest flights from Portland, Maine to Louisville

Our best Southwest deals on Portland, Maine to Louisville flight tickets
Southwest
May 5
PWM3:55 pmPortland
7h 00m
1 stop
SDF10:55 pmLouisville Intl
May 12
SDF3:45 pmLouisville Intl
6h 50m
1 stop
PWM10:35 pmPortland
$335
Southwest
May 9
PWM5:40 amPortland
7h 15m
1 stop
SDF12:55 pmLouisville Intl
May 12
SDF3:45 pmLouisville Intl
6h 50m
1 stop
PWM10:35 pmPortland
$336
Southwest
May 5
PWM1:00 pmPortland
8h 05m
2 stops
SDF9:05 pmLouisville Intl
May 12
SDF3:45 pmLouisville Intl
6h 50m
1 stop
PWM10:35 pmPortland
$340

Delta flights from Portland, Maine to Louisville

Our best Delta deals on Portland, Maine to Louisville flight tickets
Delta
Jul 7
PWM1:12 pmPortland
7h 47m
1 stop
SDF8:59 pmLouisville Intl
Jul 12
SDF4:47 pmLouisville Intl
6h 27m
1 stop
PWM11:14 pmPortland
$427
Delta
Apr 22
PWM5:21 amPortland
5h 05m
1 stop
SDF10:26 amLouisville Intl
Apr 26
SDF5:36 pmLouisville Intl
5h 47m
1 stop
PWM11:23 pmPortland
$693
Delta
Apr 21
PWM6:30 amPortland
10h 12m
2 stops
SDF4:42 pmLouisville Intl
Apr 24
SDF6:08 pmLouisville Intl
6h 38m
2 stops
PWM12:46 amPortland
$1,953

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 9, 2026.
Use the filters below to find and compare flights from Portland, Maine to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 5/26

4:51 pm-10:30 pm

1 stop5h 39m

Louisville Intl

Wed 5/27

6:30 am-1:25 pm

1 stop6h 55m

$330

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 5/5

3:55 pm-10:55 pm

1 stop7h 00m

Louisville Intl

Tue 5/12

3:45 pm-10:35 pm

1 stop6h 50m

$335

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Sat 5/9

5:40 am-12:55 pm

1 stop7h 15m

Louisville Intl

Tue 5/12

3:45 pm-10:35 pm

1 stop6h 50m

$336

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 5/5

1:00 pm-9:05 pm

2 stops8h 05m

Louisville Intl

Tue 5/12

3:45 pm-10:35 pm

1 stop6h 50m

$340

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Sat 5/9

5:40 am-3:50 pm

2 stops10h 10m

Louisville Intl

Tue 5/12

3:45 pm-10:35 pm

1 stop6h 50m

$341

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Sat 8/22

6:38 pm-10:32 am

1 stop15h 54m

Louisville Intl

Fri 8/28

8:28 pm-8:51 pm

2 stops24h 23m

$350

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 5/26

1:00 pm-10:15 pm

2 stops9h 15m

Louisville Intl

Wed 5/27

3:30 pm-10:35 pm

2 stops7h 05m

$365

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 5/26

3:55 pm-10:55 pm

1 stop7h 00m

Louisville Intl

Fri 5/29

4:45 pm-11:25 pm

1 stop6h 40m

$371

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Wed 4/29

3:22 pm-11:12 pm

1 stop7h 50m

Louisville Intl

Sat 5/2

2:55 pm-9:19 pm

1 stop6h 24m

$372

PortlandLouisville

PWM - SDF

PWMSDF

Portland

Tue 5/26

3:55 pm-10:55 pm

1 stop7h 00m

Louisville Intl

Fri 5/29

5:25 pm-11:25 pm

2 stops6h 00m

$376

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Louisville from

How to get the cheapest flight ticket from Portland, Maine to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland, Maine and Louisville?

When to book flights from Portland, Maine to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Louisville (PWM to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Louisville

Fastest flight time

5h 39m

Direct flights

None
The fastest flight from Portland, Maine to Louisville takes 5h 39m
There are no direct flights from Portland, Maine to Louisville. There are no popular flight routes from Portland, Maine to Louisville.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Louisville

  • How far is Portland to Louisville Intl by plane?

    A flight from Portland to Louisville Intl will travel around 888.5 mi. By plane, this route typically takes 5h 39m.

  • When did momondo last update prices for flights from Portland Airport to Louisville Intl Airport?

    Prices for flights from Portland Airport to Louisville Intl Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Louisville Intl Airport?

  • How old do you have to be to fly from Portland Airport to Louisville Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland, Maine to Louisville?

Best airlines flying from Portland, Maine to Louisville

Compare and see reviews for airlines that fly from Portland, Maine to Louisville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $248Free CancellationRating
7.9
8,392 reviews
Search Delta flights
American AirlinesPriceFrom $270Free CancellationRating
7.1
11,560 reviews
Search American Airlines flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
West Baden Springs
Jeffersonville
Bardstown
New Albany
Shepherdsville
Corydon
Brandenburg
Elizabeth
Charlestown
Springfield
Georgetown

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Louisville?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Louisville for you.

Can I find flights from Portland to Louisville with flexible booking policies on momondo?

momondo does allow users to show only those flights to Louisville from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Louisville?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Louisville.

I’m not ready to book a flight from Portland to Louisville right now. Can momondo alert me if prices change?

Price alerts on flights to Louisville from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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